/[MITgcm]/manual/s_phys_pkgs/text/exf.tex
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revision 1.9 by molod, Wed Jun 28 15:35:07 2006 UTC revision 1.12 by jmc, Tue Jan 27 15:47:59 2009 UTC
# Line 22  forcing fields an arbitrary grid onto th Line 22  forcing fields an arbitrary grid onto th
22  CPP options enable or disable different aspects of the package  CPP options enable or disable different aspects of the package
23  (Section \ref{sec:pkg:exf:config}).  (Section \ref{sec:pkg:exf:config}).
24  Runtime options, flags, filenames and field-related dates/times are  Runtime options, flags, filenames and field-related dates/times are
25  set in \texttt{data.exf} and \texttt{data.exf\_clim}  set in \texttt{data.exf}
26  (Section \ref{sec:pkg:exf:runtime}).  (Section \ref{sec:pkg:exf:runtime}).
27  A description of key subroutines is given in Section  A description of key subroutines is given in Section
28  \ref{sec:pkg:exf:subroutines}.  \ref{sec:pkg:exf:subroutines}.
# Line 119  Run-time parameters may be broken into 3 Line 119  Run-time parameters may be broken into 3
119  \paragraph{Enabling the package}  \paragraph{Enabling the package}
120  ~ \\  ~ \\
121  %  %
122  A package is usually switched on/off at runtime by setting  A package is switched on/off at runtime by setting
123  (e.g. for EXF) \texttt{useEXF = .TRUE.} in \texttt{data.pkg}.  (e.g. for EXF) \texttt{useEXF = .TRUE.} in \texttt{data.pkg}.
 For EXF this flag is omitted, i.e. EXF is always ON if it is compiled.  
124    
125  \paragraph{General flags and parameters}  \paragraph{General flags and parameters}
126  ~ \\  ~ \\
# Line 149  For EXF this flag is omitted, i.e. EXF i Line 148  For EXF this flag is omitted, i.e. EXF i
148             max. allowed wind stress $N/m^2$ \\             max. allowed wind stress $N/m^2$ \\
149          exf\_albedo & \texttt{0.1} &          exf\_albedo & \texttt{0.1} &
150            surface albedo used to compute downward vs. net radiative fluxes \\            surface albedo used to compute downward vs. net radiative fluxes \\
151            climtempfreeze & \texttt{-1.9} &
152              ??? \\
153            ocean\_emissivity & \texttt{} &
154              longwave ocean-surface emissivity \\
155            ice\_emissivity & \texttt{} &
156              longwave seaice emissivity \\
157            snow\_emissivity & \texttt{} &
158              longwave  snow  emissivity \\
159            exf\_iceCd & \texttt{1.63E-3} &
160              drag coefficient over sea-ice \\
161            exf\_iceCe & \texttt{1.63E-3} &
162              evaporation transfer coeff. over sea-ice \\
163            exf\_iceCh & \texttt{1.63E-3} &
164              sensible heat transfer coeff. over sea-ice \\
165            exf\_scal\_BulkCdn & \texttt{1.} &
166              overall scaling of neutral drag coeff. \\
167            useStabilityFct\_overIce  & \texttt{.FALSE.} &
168              compute turbulent transfer coeff. over sea-ice \\
169            readStressOnAgrid & \texttt{.FALSE.} &
170              read wind-streess located on model-grid, A-grid point \\
171            readStressOnCgrid & \texttt{.FALSE.} &
172              read wind-streess located on model-grid, C-grid point \\
173            useRelativeWind & \texttt{.FALSE.} &
174              subtract [U/V]VEL or [U/VICE from U/V]WIND before \\
175            ~ & ~ &  computing [U/V]STRESS \\
176            zref & \texttt{10.} &
177              reference height \\
178            hu & \texttt{10.} &
179              height of mean wind \\
180            ht & \texttt{2.} &
181              height of mean temperature and rel. humidity \\
182            umin & \texttt{0.5} &
183              minimum absolute wind speed for computing Cd \\
184            atmrho & \texttt{1.2} &
185              mean atmospheric density [kg/m\^3] \\
186            atmcp & \texttt{1005.} &
187              mean atmospheric specific heat [J/kg/K] \\
188            cdrag\_[n] & \texttt{???} &
189              n = 1,2,3; parameters for drag coeff. function \\
190            cstanton\_[n] & \texttt{???} &
191              n = 1,2; parameters for Stanton number function \\
192            cdalton & \texttt{???} &
193              parameter for Dalton number function \\
194            flamb & \texttt{2500000.} &
195              latent heat of evaporation [J/kg] \\
196            flami & \texttt{334000.} &
197              latent heat of melting of pure ice [J/kg] \\
198            zolmin & \texttt{-100.} &
199              minimum stability parameter \\
200            cvapor\_fac & \texttt{640380.} &
201              ~ \\
202            cvapor\_exp & \texttt{5107.4} &
203              ~ \\
204            cvapor\_fac\_ice & \texttt{11637800.} &
205              ~ \\
206            cvapor\_fac\_ice & \texttt{5897.8} &
207              ~ \\
208            humid\_fac & \texttt{0.606} &
209              parameter for virtual temperature calculation \\
210            gamma\_blk & \texttt{0.010} &
211              adiabatic lapse rate \\
212            saltsat & \texttt{0.980} &
213              reduction of saturation vapor pressure over salt-water \\          
214            psim\_fac & \texttt{5.} &
215              ~ \\          
216            exf\_monFreq & \texttt{monitorFreq} &
217              output frequency [s] \\
218          exf\_iprec  & \texttt{32} &          exf\_iprec  & \texttt{32} &
219            precision of input fields (32-bit or 64-bit) \\            precision of input fields (32-bit or 64-bit) \\
220          exf\_yftype & \texttt{'RL'} &          exf\_yftype & \texttt{'RL'} &
# Line 207  prepend the field name to the listed att Line 273  prepend the field name to the listed att
273           \multicolumn{3}{|c|}{\textit{used in conjunction with}           \multicolumn{3}{|c|}{\textit{used in conjunction with}
274                                \texttt{EXF\_USE\_INTERPOLATION}} \\                                \texttt{EXF\_USE\_INTERPOLATION}} \\
275           \hline           \hline
276           \textit{field}\texttt{\_lon0} & $thetaMin+delX/2$  &           \textit{field}\texttt{\_lon0} & $xgOrigin+delX/2$  &
277             starting longitude of input \\             starting longitude of input \\
278           \textit{field}\texttt{\_lon\_inc} & $delX$ &           \textit{field}\texttt{\_lon\_inc} & $delX$ &
279             increment in longitude of input \\             increment in longitude of input \\
280           \textit{field}\texttt{\_lat0} &  $phiMin+delY/2$ &           \textit{field}\texttt{\_lat0} &  $ygOrigin+delY/2$ &
281             starting latitude of input \\             starting latitude of input \\
282           \textit{field}\texttt{\_lat\_inc} & $delY$ &           \textit{field}\texttt{\_lat\_inc} & $delY$ &
283             increment in latitude of input \\             increment in latitude of input \\
# Line 256  supplied as well. Line 322  supplied as well.
322    
323  %----------------------------------------------------------------------  %----------------------------------------------------------------------
324    
325    \subsubsection{EXF bulk formulae
326    \label{sec:pkg:exf:bulk_formulae}}
327    
328    T.B.D. (cross-ref. to parameter list table)
329    
330    %----------------------------------------------------------------------
331    
332  \subsubsection{EXF input fields and units  \subsubsection{EXF input fields and units
333  \label{sec:pkg:exf:fields_units}}  \label{sec:pkg:exf:fields_units}}
334    
# Line 500  Table \ref{tab:pkg:exf:diagnostics}. Line 573  Table \ref{tab:pkg:exf:diagnostics}.
573  \label{tab:pkg:exf:diagnostics}  \label{tab:pkg:exf:diagnostics}
574  {\footnotesize  {\footnotesize
575  \begin{verbatim}  \begin{verbatim}
576  ------------------------------------------------------  ---------+----+----+----------------+-----------------
577   <-Name->|Levs|grid|<--  Units   -->|<- Tile (max=80c)   <-Name->|Levs|grid|<--  Units   -->|<- Tile (max=80c)
578  ------------------------------------------------------  ---------+----+----+----------------+-----------------
579   EXFhs   |  1 | SM | W/m^2          | Sensible heat flux into ocean, >0 increases theta   EXFhs   |  1 | SM | W/m^2          | Sensible heat flux into ocean, >0 increases theta
580   EXFhl   |  1 | SM | W/m^2          | Latent heat flux into ocean, >0 increases theta   EXFhl   |  1 | SM | W/m^2          | Latent heat flux into ocean, >0 increases theta
581   EXFlwnet|  1 | SM | W/m^2          | Net upward longwave radiation, >0 decreases theta   EXFlwnet|  1 | SM | W/m^2          | Net upward longwave radiation, >0 decreases theta
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